It’s been six years since the introduction of the “new” proportionality rule in CPR 44.3(5). In that time there have been a handful of decisions at circuit judge level but none from the higher courts, until now. On appeal from Master Whalan in the Senior Courts Costs Office, The Hon. Mr Justice Marcus Smith was tasked with determining a number of issues arising from the detailed assessment of costs including the correct approach to proportionality. Unfortunately, but not surprisingly, the decision does not offer much in the way of general guidance.